Liquid dispenser



May 5, 1959 J. J. RUSSELL LIQUID DISPENSER Filed May 29, 1957 Nu IF J H'TTOPNEY.

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United States Patent LIQUID DISPENSER John J. Russell, Bellerose, N .Y.

Application May 29, 1957, Serial No. 662,480

3 Claims. (Cl. 222-321) This invention relates to a liquid dispenser and more particularly to a dispenser for liquid soaps and the like which may be mounted adjacent to a washbasin, sink, or in other similar places for convenience and economy.

An object of the present invention is to provide such a dispenser which may be readily attached to a conventional sink or washbasin.

A further object is the provision of such a dispenser which can be readily filled without requiring its removal from mounted position.

Further objects and advantages of this invention will be more clearly understood from the following description and the accompanying drawing in which:

Fig. 1 is a plan view of a dispenser embodying the present invention.

Fig. 2 is a side view thereof, in central vertical section.

Fig. 3 is an enlarged view, in central vertical section, showing the construction of the pump mechanism used in said dispenser.

In the embodiment of the invention illustrated in the drawings, the numeral 5 denotes the top of a conventional washstand, basin or sink, having a hole 6 to receive the said dispenser.

My improved dispenser comprises a flanged base 7 having a threaded hollow stem 8 which is inserted through the said hole, and a suitable nut 9 is threaded to said stem for securing the base to the member 5 in vertical position thereon.

The said base has an upright portion 10 with a recess 11 therein and a reduced recess 12 in the bottom 13 thereof.

A dispenser head 14 has a lower portion 15 which is slidable in the recess 11 and a spout 16 which extends laterally from said head. The said head is slidably retained in the recess 11 by means of a retaining screw 17 which is threaded to the wall of said recess and extends through said wall into a slot 18 in the side of the portion 15.

The head 14 also has an axial recess 19 which communicates, through an axial bore 20, with a discharge passage 21 in the spout 16.

This invention is particularly directed to the provision of improved means for detachably mounting a pump mechanism in said dispenser in such a manner that such pump mechanism may be readily removed from the dispenser for cleaning, or for replacement as a complete unit when necessary. My invention therefore is adapted for mounting therein a pump unit such as fully described in Patent No. 2,362,080, dated November 7, 1944, which includes a cylinder 22 having a piston 23 slidable therein with a portion 24 extending upwardly therefrom and permanently secured to a cap 25 having a nipple 26 projecting therefrom. The said pump is provided with suitable intake and discharge valves 27 and 28, respectively, and a spring 29 which closes the intake valve 27 and forces the piston 23 upwardly against a cover 30 that closes the upper end of the cylinder 22, as clearly illustrated in Fig. 3 of the drawing.

The said pump is mounted in the dispenser base by means of a flange 31, at the upper end of the cylinder 22, which fits within the recess 13 and seats upon an annular shoulder, at the bottom of said recess, that surrounds the bore of the stem 8. The upper end of the pump is connected to the head 14 and normally retains it in raised position against the end of the retaining screw 17 by means of the pressure exerted by the spring 29 in said pump. Movement of the head 14 downwardly within the recess 11, by pressure upon the top of the said head, will force the piston 12 downwardly into the cylinder 22, against the tension of the said spring 29, and thereby operate the pump in a manner which will be fully understood from the description in the above mentioned patent.

A container 32, which is preferably of a plastic material, is threaded to the lower end of the stem 8 and the pump has a tube 33 which extends downwardly into said container and communicates with the pump so that, by forcing downwardly upon the top of the head 14, the said head is pushed into the recess 11 and forces the piston downwardly into the cylinder 22, thereby operating the pump to dispense liquid soap from the container 32 through the discharge passage 21 in the spout 16.

The container 32 is refilled through the top of the recess 11 by simply loosening the screw 17 to remove the tip thereof from the slot 18 and withdrawing the head 14 with the pump unit thereon from the interior of the base 7 so that the liquid soap may be poured into the recess 11 and thereby filling the container 32.

It will be understood that if the pump unit were to be separated from the head 14 and it remained in the base of the dispenser when the said head is removed for filling, it would be extremely diflicult to separately remove the pump unit from said base, particularly in cases where the liquid soap or other detergents has caused binding of the pump unit to the dispenser base. This invention is therefore particularly directed to the provision of means for securely connecting the pump unit to the head 14 so that it will assure the said pump unit being removed with the head as it is lifted out of the recess 11. This is accomplished by tapering the lower portion of the bore 20 and the nipple 26 so that the said nipple may be pushed into the bore to fit tightly therein and prevent the pump from becoming detached from the dispenser head. The body portion of the cap 25 is receivable in the recess 19 and serves to reinforce the portion 24 and prevent angular movement between the pump head and the nipple 26 which would be likely to cause loosening of the tapered fit between the tapered surfaces of the said nipple 26 and the bore 20.

The cover 30 and the flange 31 are seated upon the annular shoulder at the bottom of the reduced recess 12 and the diameters of the said flange and head are such as to provide a loose fit between the sides thereof and the walls of the recess 8 so as to assure easy removal of this portion of the pump unit with the head 14 when it is lifted out of the base.

It will be understood from the above description that, when the head 14 is removed from the dispenser base for refilling of the container 32, the entire pump unit will be removed therewith and, when the said head is replaced in operative position, the pump unit will also be replaced and the entire assembly will be connected by simply rotating the screw 17 so that the tip thereof will extend into the slot 18 and thereby slidably secure the head to the dispenser base and retain the pump unit in position.

I claim:

1. A dispenser for liquid soap and the like adapted to be mounted upon a separate member, the said dispenser including a flanged base having a hollow stem adapted to be inserted through an opening in said separate memher, a nut threaded to said stem and cooperating with the flange of the base for securing the dispenser in mounted a vertical recess therem communicating with the bore of the stem and a separate recess in the bottom thereof proshouldersurrounding the said bot-ea in said recess, means slidably: and :detacheblysecuring said head directly to the base, the said head having a bore, therein, a spout onsaid head having a disthe separate member, the said base having charge passage communicating with, the saidbore, a

pump unit having a cylinder with a flange-portion and a movable member extending from said cylinder, the said flange portion of the cylinder fitting loosely within the separate recess in the base and thesaid movable portion of the pulp unit having a tapered projection fitting tightly .withina tapered portion of the bore in said head to providetorremoval of the entire pump unit with thehead as the said head is detached from the base. n in: 2. A liquid dispenser adaptedtobe mounted upon separate member and including a flanged base having a hollow stemadapted to be inserted throughan opening in said separate member, a nut threaded to said stem and cooperating with the flangeof the base for securing the dispenserto said separate member, a container secured tolthelreenend portion of thestem, the said base having a recess therein communicating with the bore of the stem and an annular shoulder in the bottom of said recess surrounding said bore, a head slidable in said recess, a retaining screw threaded to the wall of said recess and projecting into an elongated slot in the side of said head for slidably retaining it within the "ecess, said head having an axial bore communicating with a recess opening at the bottom of the head and a tapered portion adjacent said recess, a discharge passage in the spout communicating with the said bore, and a pump unit including a stationary portion adapted to be inserted into the bore of the stem and loosely supported upon the said annular shoulder and a movable member having a tapered projection fitting tightly within the tapered portion of the bore in said head for securely connecting the pump unit to the head for removal of said pump unit with said head upon detachment of the head from the base, and, an enlarged portion on the movable member of the pump fitting within the enlarged portion of the bore" in the head for preventing angular movement between the pump unit and the head.

3. A liquid dispenser as set forth in claim 2 wherein the pump unit includes a spring and the dispenser head is normally retainedoutwardlyof the base and incu- 20 gagement with the retaining screw by said spring.

References Cited in the file of this patent UNITED STATES PATENTS 

